Marco has a bag of 50 colored marbles. there are 12 blue marbles,18 black marbles, and 20 red marbles. what is the ratio of the numbers of black marbles to the number of blue marbles

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Select the number of ways in which a line and a circle can intersect

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great